Home / 216,307.56-298,501.32-120,815.64

Finding the Fourth Proportional to 216,307.56, 298,501.32 and 120,815.64

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Solution

The fourth proportional to 216,307.56, 298,501.32 and 120,815.64 is: 166,723.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,307.56 : 298,501.32 = 120,815.64 : x
  2. Step 2: Convert to fraction form
    216,307.56/298,501.32 = 120,815.64/x
  3. Step 3: Cross multiply
    216,307.56x = 298,501.32 × 120,815.64
  4. Step 4: Simplify right side
    216,307.56x = 36,063,628,016.64
  5. Step 5: Solve for x
    x = 36,063,628,016.64/216,307.56
  6. Step 6: Final answer
    x = 166,723.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.